2 x Motorola SB 6121-SURFboard eXtreme Cable Modems - $10 (Frederick)

Up for you review are two SB 6121 Motorola SURFboard eXtreme Cable Modems.
I had one in use and one for a spare.
Awhile back I had a weird router issue & tried to use the other SB6121 thinking it was the cable modem.
Well you guessed it Xfinity had now made it a legacy device and could not set it up only after taking the other one out and trying to set up my spare.
So I had to find a sb6141 and got back up after ordering a new router.
That said it looks like some folks like Cox might still support these.
At the very least you get two good power supplies if no one supports these cable modems anymore.
They are in in boxes as shown.
10.
00 takes both of these home.
Info at Cox Support page.
https://www.
cox.
com/residential/support/arris--surfboard-sb6121.
html